5results about How to "Improve sizing effect" patented technology

The application discloses a paper-based and pulp molded product strong water-based structure resin composition for constructing a fiber matrix, a kit and a preparation and application method thereof, and belongs to the technical field of papermaking wet end chemistry and pulp molding materials. In response to the global trend of replacing plastic with paper and fluorine-free control of food contact materials, the application aims at the pain point of failure of traditional chemicals in a high recycling pulp proportion and a closed water circulation high conductivity system, and constructs an acrylic polycarboxylic acid polymer and inorganic-organic dual charge buffer synergistic system. The scheme realizes the multiplication effect of physical strength such as breaking and ring pressure and the water resistance and oil resistance barrier performance by a unique crosslinking mechanism at a very low dosage, which is better than conventional enhancement technology on the market. The composition is a full water-based system and does not contain perfluorinated compounds, which ensures complete pulp recycling while giving the product excellent wet stiffness and film-forming density, and provides a green solution with high efficiency, low cost advantage and compliance for the papermaking and pulp molding industry.

This invention discloses a method for preparing a highly reactive AKD emulsion, as well as the high-reactivity AKD emulsion and its applications. The method includes the following steps: slowly adding the oil phase to the aqueous phase and pre-emulsifying for 10-20 minutes under high-speed shear emulsification to obtain a coarse emulsion; pumping the coarse emulsion into a dual-grinding-disc system composed of a first colloid mill and a second colloid mill connected in series, where the emulsion is successively ground and dispersed by the two grinding discs to obtain a refined emulsion; sending the refined emulsion into a circulating stabilization tank, continuously stirring at 40-50°C, and then returning the emulsion to the inlet of the dual-grinding-disc system via a circulating pump for cyclic grinding and stabilization treatment; cooling and filtering to obtain a highly reactive AKD emulsion. This invention utilizes differentially spaced dual-grinding-disc series grinding combined with low-temperature cyclic stabilization. Through stepwise refinement and cyclic stabilization treatment, it significantly reduces the emulsion particle size, improves particle size uniformity, enhances the interfacial reactivity of AKD particles, and greatly inhibits hydrolysis, thereby achieving efficient sizing at low dosages.

This invention discloses a method for preparing and applying a bio-based plastic starch slurry with medium-temperature water solubility, belonging to the field of textile manufacturing technology. The invention uses native starch as raw material, utilizes amylase to hydrolyze starch to prepare branched-limit dextrin, and uses this as a plasticizer for the starch slurry. Then, amphoteric starch is prepared by grafting in a two-step process at low temperature. Finally, an ethanol-alkali method is used to treat the starch to obtain a medium-temperature water-soluble amphoteric starch slurry. The preparation, boiling, and sizing processes of this slurry all occur at temperatures not exceeding 70℃, achieving medium-low temperatures throughout the entire process. This significantly reduces energy consumption while ensuring the sizing yarn performance meets weaving requirements. Furthermore, the prepared bio-based plastic starch slurry with medium-temperature water solubility exhibits excellent sizing performance, and the sized glass fiber warp yarns possess high bundle strength, high abrasion resistance, excellent mechanical properties, and excellent softness.

The utility model relates to food sizing technology field, proposes a kind of food sizing machine, comprising: bottom plate;Supporting plate and oppositely arranged moving plate are arranged in the bottom plate side;Sizing assembly is arranged between the supporting plate and moving plate, and sizing assembly includes stirring assembly and rotating assembly;Rotating assembly includes stirring barrel and multiple partitions set in stirring barrel interior;Stirring assembly includes inner drum set in stirring barrel interior and stirring rod arranged in inner drum interior, the outer wall of the inner drum is provided with multiple groups of cards, for fixed inner drum. Through the setting of stirring barrel and partition, the rotation of stirring barrel can be driven by the starting of second motor, the partition in its interior can increase the movement distance of meat, and short-distance, high-frequency beating can be carried out, so that the sizing effect is higher, and through detachable inner drum and detachable stirring rod, for different meats, etc. two different ways of rotation, stirring can be selected to size, so that the versatility of the device is higher.

The application provides a vamp gluing device and method, and belongs to the field of shoemaking. The device comprises a main glue gun, an auxiliary glue gun, a third glue gun, a blowing assembly and a baffle assembly. The auxiliary glue gun is arranged at an adjustable inclination angle. The main glue gun is horizontally arranged and located below the auxiliary glue gun. The baffle assembly is arranged in front of the main glue gun and can be retracted backward. The third glue gun is horizontally arranged and located below the baffle assembly. The blowing assembly is arranged below the third glue gun. The application can avoid glue overflow or convex points at the toe of the shoe and effectively improve the gluing effect.